Jingye Group, a Chinese steelmaker, acquired British Steel’s facilities in the U.K. and the Netherlands, a move that will secure approximately 3,200 jobs. Jingye will invest approximately $1.5 billion in the business. Initiatives include: the development of an electric-arc furnace (EAF) in Teesside; the construction of a new 250-MW power plant to serve the Scunthorpe site; investment in the rolling mills to produce high-quality steel products; the construction of a new rebar line; and enhancing the current rail mill.
Saarstahl AG successfully commissioned a new five-strand billet caster at its steel plant in Völklingen, Germany. The caster, supplied by SMS Concast, a member of SMS group, is designed for a nominal annual production of 850,000 tons and the casting of 180-mm-square billets. According to SMS Concast, the casting machine at Saarstahl is the first caster in the world designed with mechanical soft reduction (MSR) technology for a billet cross section of 180 mm (7 inches) square. It produces billets in a wide range of steel grades, including bearing steel, spring steel, cold-heading and free-cutting steels.
The R10 series of fixed infrared sensors is designed for use in OEM equipment and industrial process control and monitoring applications. All models have a temperature range of 32-932°F (0-500˚C) and feature 4-20 mA output.
Forge shops can increase productivity and reduce costs in hot-forging and heat-treatment processes using synthetic lubricants and/or protective coatings. Hard coatings cold-welded onto high-wear areas of dies or anti-oxidation coatings painted directly onto forging billets can help.
Protective coatings continue to play a major role in increasing productivity and reducing costs in hot forging and heat treatment. This paper presents details and successful case studies of three such protective coatings.
The first installment of this article covered the problem of properly cooling forged microalloyed steels. In this second and final article we discuss details on heat-transfer coefficients, experimentation, production simulation and final results enabling more extensive use of this class of steels.
February 7, 2020
The first part of this article ran in the December 2019 issue. It gave an overview of a challenge facing forgers of microalloyed steels – controlled cooling!
Accurate temperature measurements are critical to forging processes and the metallurgical properties of forged components. For a given set of specific conditions, IR temperature sensors work reliably and produce repeatable temperature measurements – but not necessarily accurate ones. Accuracy comes from properly calibrating sensors to the specific materials and applications.
Part I of this article considered the technology of measuring temperature through the infrared radiation of a heated metal mass and some of the misconceptions and inaccuracies that may be present in or about the process. This article will explore ways to improve accuracy through proper calibration and to take temperature measurements of highly reflective bodies.
Sheffield Forgemasters will lead a consortium of partners in a research-and-development project to explore the industrialization of electron-beam welding (EBW) in civil nuclear assemblies, with the potential to integrate welding into the manufacturing process. The Sheffield, U.K., company will install an electron-beam welder capable of welding 3-meter-diameter cylinders under localized vacuum and without traditional welding preparation, offering narrower welds than traditional methods plus the ability to weld as part of the manufacturing process, prior to quality heat treatment. It will then manufacture a civil nuclear component to demonstrate a full-sized (4.3 meters high x 3 meters diameter) small modular reactor pressure vessel and also produce several grades of steel alloys suitable for civil fission and fusion nuclear applications within the project's research element.
Premier Forge Group, a portfolio company of Wynnchurch Capital, acquired California Amforge Corp. Located in Azusa, Calif., Amforge manufactures closed-die, upset and rolled-ring forgings for the aerospace, defense and oil-and-gas industries. The company supplies critical components for both fixed and rotary wing aircraft and engines in military and civil applications. Located in Portland, Ind., and Lebanon, Ky., Premier Forge provides high-value, complex forgings for OEMs in a range of markets. The company’s capabilities include comprehensive forging processes complemented by in-house design and engineering, product machining and heat-treating services.
Blue Point Capital Partners acquired Mattco Forge Inc., a manufacturer of forged-metal products primarily for the aerospace and defense sectors. Paramount, Calif.-based Mattco offers a wide range of products and customized product configurations in various metal alloys that are critical to high-performance parts. According to Blue Point, Mattco has strategically positioned itself as a key supplier of forged-metal products in the aerospace and defense industries. Blue Point hopes to expand the company's production capabilities, improve its supply-chain management and enhance its business infrastructure.